JPH11353116A - Seal structure of touch type panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent liquid such as oil from entering an input terminal equipped with the touch type panel. SOLUTION: This seal structure of the touch type panel 1 which is equipped with the touch type panel 1 sensing a touch on the top surface and a frame 10 where the touch type panel 1 is fixed and adheres the touch type panel 1 to the frame 10 by applying a fluid adhesive 14 to a groove 5 formed on the back side of the frame 10 for sealing to prevent liquid from entering the part between the frame 10 and touch type panel 10 is provided with a buffer groove 16 at a further inner peripheral part of the groove 5 as an excess preventing means for prevention against the excess of the fluid adhesive 14. As the seal structure, a transparent cover is mounted in front of the frame 10 and touch type panel 1 and a seal material surrounding the touch type panel 1 is arranged between the frame 10 and the cover to securely prevent the entry of liquid.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input terminal having a touch panel capable of preventing foreign substances such as oil and water from entering.

[0002]

2. Description of the Related Art Conventionally, an input terminal having a touch panel for inputting data by touching a screen has been known as data input means such as inventory control of products in a warehouse or a control device of a machine tool. .

[0003] This touch panel generally has a transparent sheet made of a material such as PET (polyethylene terephthalate) having a plurality of parallel electrodes formed on the back surface, and a plurality of parallel electrodes orthogonal to the above-mentioned electrodes. It consists of two layers with a glass plate. Then, the transparent sheet and the glass plate are opposed to each other with a small gap therebetween through a predetermined transparent spacer, and when an operator presses the transparent sheet with a finger, the intersection of the electrodes (hereinafter referred to as conductive). (Referred to as an electrode pair) is detected. However,
Liquid such as oil or water on the operator's hand or coolant scattered from a machine tool or the like adheres to the surface of the touch panel, which passes from the edge of the touch panel to between the transparent sheet and the glass plate. In some cases, it may intrude between the conductive electrode pairs, and may disturb the operation of the input terminal. For this reason, the touch panel usually has a seal structure for preventing the intrusion of the liquid such as oil or water.

As a seal structure of the touch panel, for example, a technique disclosed in Japanese Patent Application Laid-Open No. Hei 9-115378 is known, and FIG. 5 is a cross-sectional view of the touch type liquid crystal panel disclosed in the publication. . In the figure, the touch panel 1 is held by an elastic member 9, and the elastic member 9 is formed by double molding, and the touch switch type liquid crystal panel 2 (this corresponds to the above-mentioned input terminal, and hereinafter, the input terminal 2 ) Is formed integrally with the case 3). The display 6 and the printed circuit board 8 that controls the display 6 and the touch panel 1 are held by another elastic member 4 and mounted on the case 3 with screws (not shown) or the like.
A portion where the touch panel 1 contacts the elastic member 9 (a portion P in the figure) is a double-sided tape (not shown).
To make the input terminal 2 drip-proof.

However, the touch panel 1 is made of a material which is easily broken, such as glass, and it is difficult to strongly press the touch panel 1 against the case 3 (that is, the elastic member 9) when bonding with a double-sided tape. For this reason, a gap may be formed at a position where the double-sided tape is attached, and a liquid such as oil may enter the inside of the input terminal 2 through the gap.
Further, the double-sided tape may be deteriorated due to aging or may be deteriorated by a liquid such as oil or water, so that the drip-proof property is not reliable.

[0006] In view of this problem, the touch panel 1 of the input terminal 2 according to the second prior art according to the second prior art, which has increased reliability of the drip-proof property.
FIG. 6 shows the seal structure of FIG. In the figure, the upper side is the front side of the input terminal 2 and the lower side is the back side. Also,
The left side is the outer peripheral direction of the input terminal 2, and the right side is the inner peripheral direction. According to the drawing, a groove 5 is provided on the back side of a frame 10 having a frame shape so as to surround the outer peripheral portion of the front surface of the touch panel 1, and a fluid adhesive 14 is applied inside the groove 5. doing. The touch panel 1 is adhered to the frame 10 by the fluid adhesive 14, and the intrusion of liquid from the gap 12 between the frame 10 and the touch panel 1 is prevented. A display 6 is provided on the back side of the touch panel 1, and is fixed to the back side of the frame 10 by screws 7. Further, a printed circuit board (not shown) is provided on the back side, and is fixed to the frame 10 by screws (not shown).

As a third prior art, a seal structure as shown in FIG. 7 is known. According to the figure, a double-sided tape 20 having a thickness approximately equal to the depth of the groove 5 is attached to the groove 5 provided on the back side of the frame 10, thereby fixing the touch panel 1 to the frame 10. . Then, the input terminal 2 is inserted from the front into the mounting hole 15A of the mounting panel 15 for terminal mounting, and the mounting bracket for fixing from the back side of the input terminal 2 with the outer periphery of the frame 10 covered on the front of the mounting panel 15. (Not shown). Further, the front surface of the fixed input terminal 2, that is, the front surface of the frame 10 and the touch panel 1 is covered with a transparent cover 19, and the cover 19 is fixed to the mounting panel 15 with a double-sided adhesive tape 23, so that the liquid can enter. It is to prevent.

[0008]

However, the second and third prior arts have the following problems.

First, as a problem of the second prior art, when applying the flowable adhesive 14, it is necessary to apply the amount enough to fill the groove 5. That is, if the amount of the flowable adhesive 14 applied is insufficient, the grooves 5
In some cases, voids may be formed and oil or water may enter. Conversely, if the amount of the flowable adhesive 14 is too large,
The overflowing adhesive 14A leaks from the gap 12 between the frame 10 and the touch panel 1 and protrudes into the frame 10. As a result, the surface of the touch panel 1 is soiled, the appearance of the input terminal 2 becomes very dirty, and the appearance quality is reduced. However, in order to accurately measure and apply the volume of the flowable adhesive 14, complicated and sophisticated equipment is required, which causes an increase in the manufacturing cost of the input terminal 2. In addition, during the molding process of the frame 10, irregularities are often formed in the grooves 5, and it is difficult to accurately know the volume of the grooves 5 (that is, the applied amount of the fluid adhesive 14). is there. Moreover, since the fluid adhesive 14 has viscosity, it is difficult to apply the fluid adhesive 14 uniformly over the entire circumference of the groove 5, and there may be places where the fluid adhesive 14 is large and places where it is small. This is one of the causes of the flowing adhesive 14 protruding.

Next, in the third prior art, the cover 19 is fixed to the mounting panel 15 with a double-sided adhesive tape 23. Therefore, when it becomes necessary to remove the input terminal 2 from the mounting panel 15 for maintenance or the like, the double-sided adhesive tape 23 must be peeled off from the mounting panel 15.
The double-sided adhesive tape 23 remains on the mounting panel 15 and the surface of the mounting panel 15 is stained.
At the time of peeling off, there is a problem that the mounting panel 15 is damaged. This is an important problem in terms of product appearance, particularly when the input terminal 2 having the touch panel 1 is incorporated as an operation panel of a control device such as a machine tool and sold as a product.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an input terminal capable of effectively preventing liquid such as oil from entering the inside and maintaining the appearance quality. It is intended to provide.

[0012]

In order to achieve the above object, a first aspect of the present invention provides a touch panel which senses contact with a surface, and an outer peripheral portion of the touch panel which has a front surface. And a frame for fixing the touch panel to the frame via a flowable adhesive applied to a groove provided on the back side of the frame over the entire circumference, and a gap between the frame and the touch panel. In the sealing structure of the touch panel for sealing the intrusion of the liquid, a protruding preventing means for preventing the flowing adhesive from protruding is provided on the inner peripheral side of the groove.

[0013] According to the invention described in the first configuration, the protrusion that fixes the touch panel and the frame and prevents the liquid adhesive that prevents liquid from entering the input terminal from protruding into the frame. It has prevention means. This prevents the touch panel from being stained with the overflowing adhesive, thereby improving the appearance quality of the input terminal. In addition, since it is not necessary to accurately measure the amount of the flowable adhesive applied to the groove, the manufacturing process of the input terminal is simplified.

According to a second aspect of the present invention, in the seal structure for a touch panel according to the first aspect of the present invention, the protrusion preventing means is a buffer groove provided in an inner peripheral portion further than a groove of the frame. .

According to the invention described in the second configuration, a new buffer groove is provided in the inner peripheral portion of the groove provided in the frame. As a result, the flowable adhesive that overflows from the groove accumulates in the buffer groove and does not protrude inside the frame. As described above, it is possible to effectively prevent the flowing adhesive from protruding without adding a new process when assembling the input terminal.

According to a third aspect of the present invention, in the seal structure for a touch panel according to the first aspect of the present invention, the protrusion preventing means is elastically attached to an inner wall on an inner peripheral side of the groove. It is a partition plate.

According to the invention described in the third configuration, the partition plate seals between the frame and the touch panel.
It is possible to reliably prevent the flowing adhesive overflowing from the groove from protruding into the frame. Further, since the excess fluid adhesive is sucked into the partition plate and pushes and expands the partition plate against the elasticity of the partition plate, it does not stain other parts except the inner peripheral portion of the input terminal.

According to a fourth aspect of the present invention, in the seal structure for a touch panel according to the first aspect of the present invention, the protrusion preventing means is provided in a partition plate fixing groove further provided on an inner peripheral portion of the groove of the frame. It is a fitted elastic partition plate.

According to the invention described in the fourth configuration, since the partition plate is fitted into the partition plate fixing groove provided on the inner peripheral portion of the groove, when the partition plate is fixed to the frame, it is always accurate. Positioning can be performed, and sealing performance is improved. Further, since the time and effort for bonding are not required, the assemblability of the input terminal is improved.

According to a fifth aspect of the present invention, there is provided a touch panel for sensing contact with the surface, and a frame for fixing an outer peripheral portion of the front surface of the touch panel, and a front surface of the frame and the touch panel. In a seal structure of a touch panel, which is provided with a transparent cover and seals ingress of liquid from the frame and the touch panel, the cover is adhered to a front surface of the frame by a sealing material surrounding the touch panel. .

According to the invention described in the fifth configuration, the transparent cover is mounted on the front surface of the frame and the touch panel, and the cover is adhered to the frame by the sealing material. With this, the cover and the sealing material can more reliably prevent the liquid from entering the input terminal, reduce the failure of the input terminal, and attach the cover to the frame. It does not damage the surface of the mounting panel when peeling. Therefore, the appearance quality of the mounting panel can be maintained. In addition, since the input terminal can be attached or detached by itself, handling during mounting or maintenance becomes easy.

According to a sixth aspect of the present invention, in the input terminal according to the fifth aspect of the present invention, two or more sealing materials are provided substantially concentrically.

According to the invention described in the sixth aspect, since two or more sealing members are provided substantially concentrically, the sealing performance with respect to the liquid is improved, and the failure of the input terminal is reduced. Moreover, since the cover is transparent, when the liquid passes through the outer peripheral sealing material, it is easy to detect this by discoloration of the sealing material, etc., and it is possible to take immediate measures against liquid intrusion. It is.

According to a seventh aspect of the present invention, in the input terminal according to any one of the fifth and sixth aspects, the sealing member has a double-sided adhesive tape attached to both sides of the sealing member.

According to the invention described in the seventh configuration, the double-sided adhesive tape is attached to the seal material, and the space between the frame and the cover is fixed by the double-sided adhesive tape. This eliminates the need for a separate means for fixing the cover to the frame, thereby improving the assemblability of the input terminal.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings. In all of the following embodiments, the same components as those in the above-described drawings are denoted by the same reference numerals, and redundant description will be omitted.

First, a first embodiment will be described with reference to FIG. FIG. 1 is a sectional view of an input terminal 2 according to the present embodiment. In FIG. 1, an input terminal 2 includes a touch panel 1 for inputting data and command signals, a display 6 (for example, a liquid crystal panel or a plasma display) for displaying a data input screen, and the like, and the touch panel 1 and the display 6. And a frame 10 having a frame shape for fixing the printed circuit board 8 of the electronic circuit.

At this time, the inner periphery of the back surface of the frame 10 has the groove 5 over the entire periphery of the frame 10.
Further, a buffer groove 16 is provided on the inner peripheral side substantially parallel to the groove 5. A fluid adhesive 14 is applied to the grooves 5 of the frame 10, and the touch panel 1 is fixed to the frame 10 by the fluid adhesive 14. A display 6 is provided on the back side of the touch panel 1, and is fixed to the back side of the frame 10 by screws 7. Further, a printed circuit board 8 is provided on the back side, and is fixed to the frame 10 by screws (not shown). Further, the input terminal 2
Is provided with a screw-type back cover 11, which is fixed to the frame 10 by screws (not shown),
The internal display 6 and the printed circuit board 8 are protected.

In the following, the touch panel 1 is mounted on the frame 10
The operation when fixing to is described in detail. First,
The frame 10 is placed with its front face down (upside down in the figure), and the flow adhesive 14 having a volume substantially equal to or slightly larger than the volume of the groove 5 is applied to the groove 5. I do. The fluid adhesive 14 has resistance to liquids such as oil and water that may adhere to the input terminal 2.
It also acts as a seal structure for these liquids. Then, the touch panel 1 is pressed against the frame 10 from the back side of the frame 10 (the lower side in the figure), and a predetermined force is applied for a predetermined time to bond the panel. At this time, as shown in the figure, the fluid adhesive 14A overflowing from the groove 5 accumulates in the buffer groove 16 and solidifies, so that the fluid adhesive 14 protrudes inside the frame 10 and the surface of the touch panel 1 Will not be stained. As described above, the buffer groove 16 serves as a means for preventing the flowing adhesive 14 from protruding (this is referred to as a protruding preventing means).

As described above, according to the present embodiment, the overflowing adhesive 14A does not protrude into the frame 10 and does not stain the surface of the touch panel 1, so that the appearance of the input terminal 2 becomes dirty. Never be. In addition, the liquid adhesive 14 can reliably prevent liquid such as oil from entering.

Next, a second embodiment will be described with reference to FIG. FIG. 2 is a sectional view of the input terminal 2 according to the present embodiment. In the figure, a groove 5 is provided in the inner peripheral portion on the back surface of the frame 10, and the inner wall 1 on the inner peripheral side of the groove 5 is provided.
A partition plate 17 is adhered to 8A. The partition plate 17 is preferably made of a material having elasticity and absorbing oil and water, for example, a sponge is preferable. When the touch panel 1 is mounted, the partition plate 17 is adhered to the inner wall 18A on the inner peripheral side, and a flow adhesive 14 having a volume that almost fills the groove 5 is applied to the groove 5 as in the first embodiment. . Then, the touch panel 1 is pressed against the frame 10 from the back side of the frame 10 (the lower side in the figure),
A predetermined force is applied for a predetermined time to adhere.

Thus, when the amount of the fluid adhesive 14 is too large, the excessive amount is sucked into the partition plate 17 or the partition plate 17 is pressed against its elastic force. Thereby, the flowing adhesive 14 does not overflow from the groove 5. Furthermore, since the partition plate 17 seals between the frame 10 and the touch panel 1, the flowable adhesive 14 does not protrude into the frame 10 and does not stain the surface of the touch panel 1.

As described above, according to the present embodiment, since it is not necessary to provide the buffer groove 16 in the frame 10, the structure of the frame 10 is simplified. In addition, the partition plate 17 can more reliably prevent the flowing adhesive 14 from protruding inside the frame 10.

Alternatively, at this time, instead of bonding the partition plate 17 to the inner wall 18A on the inner peripheral side, a partition plate fixing groove similar to the buffer groove 16 in the first embodiment is further provided on the inner peripheral portion than the groove 5 of the frame 10. And the partition plate 17 may be fitted into the partition plate fixing groove. By doing so, accurate positioning can always be performed when the partition plate 17 is fixed to the frame 10, and the partition plate 17 does not bend, so that the sealing performance is improved. Further, since the time and effort for bonding are not required, the assemblability of the input terminal 2 is improved.

The space between the transparent sheet and the glass plate of the touch panel 1 is not sealed in order to avoid a change in volume due to a change in temperature of the internal air. It has a small hole (not shown).
Therefore, before applying the flow adhesive 14, it is desirable to mask the position corresponding to the small hole of the inner wall 18B on the outer peripheral side of the groove 5 so that the flow adhesive 14 does not contact. Then, after applying the fluid adhesive 14, if the masking is removed and the touch panel 1 is adhered, the fluid adhesive 14 closes the small holes of the touch panel 1 or enters the inside of the touch panel 1. And the reliability of the touch panel 1 is improved.

Further, the inner wall 18B on the outer peripheral side of the groove 5 provided in the frame 10 has at least one notch on the upper side of the four sides, and another partition plate is fitted therein. Is desirable. This is because when the amount of the flow adhesive 14 is too large, the flow adhesive 14 that cannot be absorbed by the partition plate 17 on the inner wall 18A side on the inner peripheral side is absorbed by the partition plate.

Next, a third embodiment will be described with reference to FIG. FIG. 3 is a sectional view of the input terminal 2 according to the present embodiment.

In the same figure, a double-sided tape 20 having substantially the same thickness as the groove 5 is attached to the groove 5 of the frame 10.
The touch panel 1 is fixed to the back side of the frame 10 by the double-sided tape 20. The method for fixing the display 6 and the printed circuit board 8 is the same as the method described in the first embodiment. On the front surface of the input terminal 2, that is, on the surfaces of the frame 10 and the touch panel 1, a transparent cover 19 adapted to the external shape of the input terminal 2 is provided as a seal structure for preventing liquid from entering the input terminal 2. It is installed. The cover 19 is made of a material such as PET, for example, and has such a thickness and softness that the pressure is transmitted to the touch panel 1 when an operator presses the cover 19 from the front.

The cover 19 is provided with two seal grooves 21A and 21 substantially concentrically over the entire circumference so as to surround the touch panel 1 at a position in contact with the frame 10.
B. And these seal grooves 21A, 2
Seal members 22A and 22B are fitted inside 1B, respectively. A double-sided adhesive tape 23 is attached to the front and back surfaces of the sealing materials 22A and 22B, and the cover 19 is fixed to the frame 10. It is desirable that the double-sided adhesive tape 23 be one that can be easily peeled off. Alternatively, at this time, for example, an adhesive that can be easily peeled off may be applied instead of the double-sided adhesive tape 23. As a material of the sealing materials 22A and 22B, for example, rubber is preferable, but it is necessary to have resistance to a liquid such as oil or water which is expected to enter the input terminal 2.

As described above, by sandwiching the seal members 22A and 22B between the cover 19 and the frame 10, even if the liquid enters through the gap 24 between the cover 19 and the frame 10, for example, the seal member 22A on the outer peripheral side is formed. This prevents entry into the gap between the touch panel 1 and the frame 10. Then, even if the liquid may enter the inside of the seal material 22A due to deterioration of the seal material 22A or a gap generated by dust caught between the seal material 22A and the frame 10 when the cover 19 is attached. The amount of intrusion is very small, and further intrusion is reliably prevented by the seal member 22B located on the inner peripheral side. Moreover, since the cover 19 is transparent, it is easy to detect that oil or water has entered the inside of the sealing material 22A, and it is possible to take measures such as immediately replacing the sealing materials 22A and 22B.

According to the present embodiment, the two seal members 22
Since the input terminal 2 is double-sealed from the liquid by A and 22B, it is possible to reliably prevent the liquid from entering the inside of the input terminal 2 and to reduce the failure of the input terminal 2 and improve its reliability. I do. Furthermore, even if the liquid passes through the sealing material 22A on the outer peripheral side, the invasion can be seen by the transparent cover 19, so that a countermeasure against the intrusion of the liquid can be taken at an early stage. Further, since the cover 19 is fixed to the frame 10 instead of the mounting panel 15 as in the third prior art, when the cover 19 needs to be removed, the appearance quality can be improved without damaging the mounting panel 15. Can be maintained.

Further, according to the present embodiment, since the input terminal 2 is fixed to the frame 10, the cover 19 can be attached even when the input terminal 2 is carried alone. Further, since the double-sided adhesive tape 23 is attached to the sealing members 22A, 22B fitted in the seal grooves 21A, 21B, the position where the double-sided adhesive tape 23 hits the frame 10 is always constant. Thereby, when the cover 19 is attached and detached, the double-sided adhesive tape 23 remaining on the frame 10 is removed.
The trace of the double-sided pressure-sensitive adhesive tape 23 is always stuck on the previous trace without the trace of the frame 10 being disturbed in a multiplex manner. Therefore, the trace of the previous double-sided adhesive tape 23 is hidden by the sealing materials 22A and 22B, It is possible to maintain good appearance quality.

In this embodiment, the two seal grooves 21
Although two seal members 22A and 22B are fitted to A and 21B, the present invention is not limited to two, but may be plural. Or seal groove 2
A double-sided tape having a thickness substantially the same as or slightly greater than the depth of 1A, 21B may be used as a sealing material in which the sealing materials 22A, 22B and the double-sided adhesive tape 23 are combined. Further, the seal grooves 21A and 21B may be provided on the frame 10 side.

Further, for example, as shown in FIG. 4, the width of one sealing groove 21A may be widened, and two or more sealing materials 22A and 22B may be adhered inside the sealing groove 21A at an interval. In this case, the space 25 between the sealing material 22A and the sealing material 22B functions as an oil reservoir,
A is blocked by the sealing material 22B even if a liquid such as oil passes through A,
Moreover, the liquid does not contaminate other devices and the like.

When the device is used in an environment where contamination by a liquid such as oil is relatively small, one seal groove 21A and one seal member 22A may be provided, or the seal groove 21A is provided. Alternatively, the cover 19 may be directly attached to the frame 10 with an adhesive tape.

[Brief description of the drawings]

FIG. 1 is a sectional view of an input terminal according to a first embodiment of the present invention.

FIG. 2 is a sectional view of an input terminal according to a second embodiment.

FIG. 3 is a sectional view of an input terminal according to a third embodiment.

FIG. 4 is a sectional view of another configuration example of the input terminal.

FIG. 5 is a cross-sectional view of a touch-type liquid crystal panel according to the related art.

FIG. 6 is a sectional view of an input terminal according to a second conventional technique.

FIG. 7 is a sectional view of an input terminal according to a third conventional technique.

[Explanation of symbols]

1. Touch panel, 2. Input terminal, 3. Case, 5.
Groove, 6 Indicator, 7 Screw, 8 Printed circuit board, 9 Elastic member, 10 Frame, 11 Back cover, 12 Gap, 1
4 ... flowing adhesive, 15 ... mounting panel, 16 ... buffer groove, 1
7: partition plate, 18A: inner wall on the inner peripheral side, 18B: inner wall on the outer peripheral side, 19: cover, 20: double-sided tape, 21A, 2
1B: seal groove, 22A, 22B: seal material, 23: double-sided adhesive tape, 24: gap, 25: space.

Claims (7)

[Claims] 1. A touch panel for sensing contact with a surface
(1), and a frame (10) for fixing the outer peripheral portion of the touch panel (1) from the front, and the flow applied to the groove (5) provided on the entire back side of the frame (10). A touch panel that adheres the touch panel (1) to the frame (10) via an adhesive (14) and seals ingress of liquid from between the frame (10) and the touch panel (1). (1) The seal structure according to (1), further comprising, at an inner side of the groove (5), a protrusion preventing means for preventing the flowable adhesive (14) from running out. 2. The sealing structure for a touch panel (1) according to claim 1, wherein said protrusion preventing means is provided with a buffer groove (16) provided on an inner peripheral portion further than a groove (5) of said frame (10). A seal structure, characterized in that: 3. The sealing structure for a touch panel (1) according to claim 1, wherein said protrusion preventing means comprises an inner wall (1) on an inner peripheral side of said groove (5).
8A) or an elastic partition plate (1
7) A seal structure, characterized in that: 4. The sealing structure for a touch panel (1) according to claim 1, wherein said protrusion preventing means is fitted in a partition plate fixing groove provided on an inner peripheral portion further than a groove (5) of the frame (10). A sealing structure comprising a combined elastic partition plate (17). 5. A touch panel for sensing contact with a surface.
(1) and a frame (10) for fixing the outer peripheral portion of the front surface of the touch panel (1), and a transparent cover (19) is provided on the front surface of the frame (10) and the touch panel (1). A touch panel that is fitted to seal liquid ingress from the frame (10) and touch panel (1)
(1) The seal structure according to (1), wherein the cover (19) is adhered to a front surface of the frame (10) by sealing materials (22A, 22B) surrounding the touch panel (1). 6. The seal structure for a touch panel (1) according to claim 5, wherein two or more seal members (22A, 22B) are provided substantially concentrically. 7. The sealing structure for a touch panel (1) according to claim 5, wherein the sealing material (22A, 22B) is a double-sided adhesive tape on both surfaces of the sealing material (22A, 22B). (23) A seal structure characterized by being attached.